x002548's Blog

Not Just a Number - Brett Kaiser
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Friday, October 29, 2010

SET BASED Number Table Create Hack

Well...don't think I've seen this hack before..I guess you might call it a setbased way to create a numbers table. Who has done it this way before? USE [dba] GO CREATE TABLE n(n int) GO INSERT INTO n(n) SELECT CONVERT(int,m.n + hth.n + tth.n + th.n + h.n + t.n + u.n) AS [myDay99] FROM (SELECT '0' AS [n] UNION SELECT '1' AS [n] UNION SELECT '2' AS [n] UNION SELECT '3' AS [n] UNION SELECT '4' AS [n] UNION SELECT '5' AS [n] UNION SELECT '6' AS [n] UNION SELECT '7' AS [n] UNION SELECT '8' AS [n] UNION SELECT '9' AS [n] ) AS u CROSS JOIN (SELECT '0' AS [n] UNION SELECT '1' AS [n] UNION SELECT '2' AS [n] UNION SELECT '3' AS [n] UNION SELECT '4' AS [n] UNION SELECT '5' AS [n] UNION SELECT '6' AS [n] UNION SELECT '7' AS [n] UNION SELECT '8' AS [n] UNION SELECT '9' AS [n] ) AS t CROSS JOIN (SELECT '0' AS [n] UNION SELECT '1' AS [n] UNION SELECT '2' AS [n] UNION SELECT '3' AS [n] UNION SELECT '4' AS [n] UNION SELECT '5' AS [n] UNION SELECT '6' AS [n] UNION SELECT '7' AS [n] UNION SELECT '8' AS [n] UNION SELECT '9' AS [n] ) AS h CROSS JOIN (SELECT '0' AS [n] UNION SELECT '1' AS [n] UNION SELECT '2' AS [n] UNION SELECT '3' AS [n] UNION SELECT '4' AS [n] UNION SELECT '5' AS [n] UNION SELECT '6' AS [n] UNION SELECT '7' AS [n] UNION SELECT '8' AS [n] UNION SELECT '9' AS [n] ) AS th CROSS JOIN (SELECT '0' AS [n] UNION SELECT '1' AS [n] UNION SELECT '2' AS [n] UNION SELECT '3' AS [n] UNION SELECT '4' AS [n] UNION SELECT '5' AS [n] UNION SELECT '6' AS [n] UNION SELECT '7' AS [n] UNION SELECT '8' AS [n] UNION SELECT '9' AS [n] ) AS tth CROSS JOIN (SELECT '0' AS [n] UNION SELECT '1' AS [n] UNION SELECT '2' AS [n] UNION SELECT '3' AS [n] UNION SELECT '4' AS [n] UNION SELECT '5' AS [n] UNION SELECT '6' AS [n] UNION SELECT '7' AS [n] UNION SELECT '8' AS [n] UNION SELECT '9' AS [n] ) AS hth CROSS JOIN (SELECT '0' AS [n] UNION SELECT '1' AS [n] UNION SELECT '2' AS [n] UNION SELECT '3' AS [n] UNION SELECT '4' AS [n] UNION SELECT '5' AS [n] UNION SELECT '6' AS [n] UNION SELECT '7' AS [n] UNION SELECT '8' AS [n] UNION SELECT '9' AS [n] ) AS m ORDER BY 1 GO

posted @ Friday, October 29, 2010 12:29 PM | Feedback (3) | Filed Under [ SQL Gimmicks ]

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